Tempering Hemispherical Radiative Properties with a Resonance Compilation

Yu Bin Chen, Yung Chun Lee, Yu Fan Chang, Yao Hua Lin, Peng Hsiang Chen

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This work demonstrates tailored hemispherical absorptance A, reflectance R, and transmittance T spectra at the coexistence of three resonances. The localized surface plasmon resonance (LSPR) is excited by a hexagonal array of 15-nm-thick circular Au pillars at the wavelength λLSPR. The Berreman and epsilon near zero (ENZ) mode resonances are generated within a fixed region λENZ ≈ 1.5 μm using diffracted waves inside a 230-nm-thick indium-tin-oxide film. The λLSPR of four samples approaches λENZ via increasing pillar diameters. For the first time, a broadband absorptance enhancement resulting from three compatible resonances is shown. The resonance compilation together with material loss cause failure of a popular LSPR indicator, which are replaced by the robust indicators proposed here.

Original languageEnglish
Pages (from-to)595-603
Number of pages9
JournalPlasmonics
Volume10
Issue number3
DOIs
Publication statusPublished - 2015 Jun 1

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biophysics
  • Biochemistry

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